Ch 2

You want a DNS server to handle queries for a domain with a standard primary zone hosted on another DNS server, and you don't want the server to be authoritative for that zone. How should you configure the server? (Choose all that apply.) a. As a stub zone on the DNS server b. As a forwarder on the DNS server c. Configure zone hints for the primary zone d. As a secondary zone on the DNS server

a. As a stub zone on the DNS server b. As a forwarder on the DNS server

Which is the correct order in which a DNS client tries to resolve a name? a. Cache, Hosts file, DNS server b. Cache, DNS server, Hosts file c. Hosts file, cache, DNS server d. DNS server, cache, Hosts file

a. Cache, Hosts file, DNS server

You're in charge of a standard primary zone for a large network with frequent changes to the DNS database. You want changes to the zone to be transmitted as quickly as possible to all secondary servers. What should you configure and on which server? a. Configure DNS notifications on the primary zone server b. Configure a smaller default TTL for the primary zone server c. Configure DNS recursion on the secondary zone servers d. Configure round robin on the primary zone server

a. Configure DNS notifications on the primary zone server

What should you do if you have a single large namespace that caters to multiple branch offices? [Choose all that apply.] a. Delegate each zone to the DNS server to maintain the resource records (RRs) b. Delegate access to the branch administrators on the single namespace c. Split it into multiple smaller namespaces d. Keep it centralized for ease of management

a. Delegate each zone to the DNS server to maintain the resource records (RRs) c. Split it into multiple smaller namespaces

Who is responsible for the management of the Internet root servers? a. Internet Assigned Numbers Authority (IANA) b. Institute of Electrical and Electronics Engineers (IEEE) c. American Registry for Internet Numbers (ARIN) d. International Standards Organization (ISO)

a. Internet Assigned Numbers Authority (IANA)

You're scanning the local cache on a DNS client, and you come across the notation ::1. What does it mean? a. It's the IPv6 localhost address. b. The cache is corrupt. c. It's a reverse lookup record. d. It's the link-local address.

a. It's the IPv6 localhost address.

You manage the DNS structure on your network. The network security group has decided that only one DNS server should contact the Internet. Under no circumstances should other servers contact the Internet for DNS queries, even if the designated server is down. You have decided that the DNS server named DNS-Int should be the server allowed to contact the Internet. How should you configure your DNS structure to accommodate these requirements? a. On each DNS server except DNS-Int, configure a forwarder pointing to DNS-Int. Disable the use of root hints if no forwarders are available. No changes are necessary on DNS-Int. b. On each DNS server except DNS-Int, in the Advanced tab of the server's Properties dialog box, disable recursion. No changes are necessary for DNS-Int. c. On each DNS server except DNS-Int, configure a forwarder pointing to DNS-Int. Configure DNS-Int as a forwarder by enabling forwarded requests in the Forwarders tab of the server's Properties dialog box. d. On each DNS server except DNS-Int, configure a root hint to point to DNS-Int and delete all other root hints. Configure a root zone on DNS-Int.

a. On each DNS server except DNS-Int, configure a forwarder pointing to DNS-Int. Disable the use of root hints if no forwarders are available. No changes are necessary on DNS-Int.

What type of resource record is necessary to get a positive response from the command nslookup 192.168.100.10? a. PTR b. CNAME c. NS d. A

a. PTR

What type of zone should you create that contains records allowing a computer name to be resolved from its IP address? a. RLZ b. FLZ c. Stub d. TLD

a. RLZ

What specific type of DNS query instructs a DNS server to process the query until the server replies an address that satisfies the query or with an "I don't know" message? a. Recursive b. Referral c. Iterative d. Resolver

a. Recursive

Which type of zone can redirect the DNS client to the authoritative DNS server that has authority for resolving hostnames for the given DNS zone? a. Stub zone b. Primary zone c. Any of the mentioned choices d. Secondary zone

a. Stub zone

What are some of the key factors that DNS policies that define how a DNS responds to DNS queries? [Choose all that apply.] a. Subnet b. Clients type c. Time of day d. Transport protocol e. Number of queries f. Server type

a. Subnet c. Time of day d. Transport protocol

The .com, .net, and .edu are all examples of what level of the DNS naming hierarchy? a. Top-level domain names b. Second-level domain names c. Subdomains d. Stub domains

a. Top-level domain names

You're having trouble with logons and other domain operations in your domain named csmtech.local. You want to verify that your domain clients can find domain controllers. Which of the following can you do? (Choose all that apply.) a. Use the dcdiag /test :dns /DnsRecordRegistration command. b. Use the nslookup -type = CNAME -domain=csmtech.local command. c. Look at the %systemroot%\System32\dns\cache.dns file. d. Look at the %systemroot%\System32\config\netlogon.dns file.

a. Use the dcdiag /test :dns /DnsRecordRegistration command. d. Look at the %systemroot%\System32\config\netlogon.dns file.

You have two DCs, each with three Active Directory-integrated zones. You're getting inconsistent DNS lookup results and suspect there is a problem with Active Directory replication. What tool can you use to investigate the problem? (Choose all that apply.) a. ipconfig b. dcdiag c. dnscmd d. nslookup

a. ipconfig b. dcdiag

How many DNS root servers are there in the world? a. 1 b. 13 c. Hundreds d. Thousands

b. 13

What DNS record type is used for an IPv6 host record?​ a. A b. AAAA c. MX d. SVR

b. AAAA

A resource record containing an alias for another record is which of the following record types? a. A b. CNAME c. NS d. PTR

b. CNAME

You need to create a resource record for a public-facing Web server in the DNS server. Which of the following type of resource record should you create? a. AAAA b. CNAME c. A d. MX

b. CNAME

Which of the following file contains the root DNS mapping? a. Cache.txt b. Cache.dns c. Cache.xml d. CacheDNS.xml

b. Cache.dns

Your organization spans multiple geographical locations. The name resolution is happening with a single DNS zone for the entire organization. Which of the following is likely to happen if you continue with the single DNS zone? [Choose all that apply.] a. Granular application of policies b. Centralized Management c. Administrative burden d. Name resolution traffic goes to the single zone e. Higher security

b. Centralized Management c. Administrative burden d. Name resolution traffic goes to the single zone

What specific term is best used to describe a computer making a DNS query? a. DNS server b. DNS resolver c. DNS helper d. DNS host

b. DNS resolver

Which of the following best describes DNS? (Choose all that apply.) a. Monolithic database b. Distributed database c. Flat database d. Hierarchical database

b. Distributed database d. Hierarchical database

What type of record does DNS create automatically to resolve the FQDN of an NS record a. PTR b. Glue A c. Auto SRV d. CNAME

b. Glue A

In a DNS database zone, which resource record consists of a computer name and IPv4 address? a. CNAME b. Host (A) c. Alias d. SOA

b. Host (A)

The DNS server at your headquarters holds a standard primary zone for the abc.com domain. A branch office connected by a slow WAN link holds a secondary zone for abc.com. Updates to the zone aren't frequent. How can you decrease the amount of WAN traffic caused by the secondary zone checking for zone updates? a. In the SOA tab of the zone's Properties dialog box, increase the minimum (default) TTL. b. In the SOA tab of the zone's Properties dialog box, increase the refresh interval. c. In the Zone Transfers tab of the SOA Properties dialog box, decrease the retry interval. d. In the Advanced tab of the DNS server's Properties dialog box, increase the expire interval.

b. In the SOA tab of the zone's Properties dialog box, increase the refresh interval.

What will happen if you manually edit the DNS zone file and then reload it in the DNS Manager? a. It will reload as a new zone. b. It will apply the changes in the DNS Manager. c. It will fail to reload. d. It will corrupt the existing zone records.

b. It will apply the changes in the DNS Manager.

You have just finished setting up your DNS infrastructure, and the DNS process seems to be working well. You want to be able to create a baseline of performance data so that if slowdowns occur later, you have information for comparison purposes. Which tool should you use? a. Debug logging b. Performance Monitor c. Event logging d. dnscmd.exe

b. Performance Monitor

What specific type of DNS query instructs a DNS server to process the query until the server replies with an address that satisfies the query or with an "I don't know" message? a. Iterative b. Recursive c. Referral d. resolver

b. Recursive

What is the output of the following command: netsh interface ipv4 add dns Ethernet 192.168.0.4 index=2 a. Installs an alternate dns server with the IP address 192.168.0.4 b. Sets the network connection called Ethernet to use 192.168.0.4 as the DNS server c. Installs a new dns server with the IP address 192.168.0.4 d. Creates a new Ethernet connection named dns with IP address 192.168.0.4

b. Sets the network connection called Ethernet to use 192.168.0.4 as the DNS server

Which of the following is true about stub zones? (Choose all that apply.) a. They're authoritative for the zone. b. Their records are updated by the primary server automatically. c. They can't be Active Directory integrated. d. They contain SOA and NS records.

b. Their records are updated by the primary server automatically. d. They contain SOA and NS records.

A valid reverse lookup zone consists of the network ID's octets in reverse order, with what at the end of the name? a. .arpa b. in-addr.arpa c. rlz.arpa d. in-addr.ptr

b. in-addr.arpa

Which of the following command is likely to provide the list of Host(A) records? a. ls -t mx practicelabs.com b. ls -t a practicelabs.com c. ls -t aa practicelabs.com d. ls -t srv practicelabs.com

b. ls -t a practicelabs.com

You want to verify whether a PTR record exists for the server1.csmtech.local host, but you don't know the server's IP address. Which of the following commands should you use to see whether a PTR record exists for server1.csmtech.local? a. dnscmd /PTR server1.csmtech.local b. nslookup server1.csmtech.local, and then nslookup IPAddress returned from the first nslookup c. ping -a server1.csmtech.local, and then ping IPAddress returned from the first ping d. dnslint /PTR server1.csmtech.local

b. nslookup server1.csmtech.local, and then nslookup IPAddress returned from the first nslookup

If your domain name is practicelabs.com, then what would be the zone file name? a. practicelabs.com b. practicelabs.com.dns c. practicelabs.dns d. Dns.practicelabs.com

b. practicelabs.com.dns

Your company just opened a small branch office where 10 computer users will work. You have installed a single Windows Server 2016 computer configured as a member server for basic file and print server needs. Users require DNS to access the Internet and to resolve names of company resources. You decide to install DNS on the existing server. Which of the following types of installations makes the most sense? a. A caching-only DNS server b. An Active Directory-integrated zone hosting the zone in which the server is a member c. A primary server hosting a standard zone d. A server that's a forwarder

c. A primary server hosting a standard zone

You have decided to install the DNS server role on Nano Server. What specific type of zone configuration is not supported when using the DNS on Nano Server? a. Replication-integrated b. Standard file-based c. Active Directory-integrated d. Standard directory-based

c. Active Directory-integrated

What type of DNS record is used to contain an alias for another record, allowing for the use of different names for the same host? a. A record b. AAAA record c. CNAME record d. Pointer record

c. CNAME record

You have a zone containing two A records for the same hostname, but each A record has a different IP address configured. The host records point to two servers hosting a high-traffic Web site, and you want the servers to share the load. After some testing, you find that you're always accessing the same Web server, so load sharing isn't occurring. What can you do to solve the problem? a. Enable the round robin option on both A records b. Enable the load sharing option on the zone c. Enable the round robin option on the server d. Enable the load sharing option on both A records

c. Enable the round robin option on the server

The FQDN of a name server that has authority over a domain is noted in what type of DNS record? a. PTR b. MX c. NS d. A

c. NS

When a DNS server responds to a query with a list of name servers, what is the response called? a. Iterative b. Recursive c. Referral d. Resolver

c. Referral

Which DNS zone type contains a read/write master copy of all resource records for the zone? a. Primary zone b. Secondary zone c. Stub zone d. Glue zone

c. Stub zone

When a dynamic DNS record is created, what is the TTL value used for? a. To determine how many hops away the updating client is b. To specify the time before the next update c. To specify how long the record should remain in the DNS database d. To determine how long it takes for a ping to reach the client and come back

c. To specify how long the record should remain in the DNS database

What is the name of a DNS server that maintains the addresses of other DNS servers within a top-level domain? a. Root server b. Authoritative server c. Top-level domain server d. Fully qualified name server

c. Top-level domain server

You have a DNS server outside your corporate firewall that's a standalone Windows Server 2016 server. It hosts a primary zone for your public Internet domain name, which is different from your internal Active Directory domain names. You want one or more of your internal servers to be able to handle DNS queries for your public domain and to serve as a backup for the primary DNS server outside the firewall. Which configuration should you choose for internal DNS servers? a. A standard stub zone. b. A forwarder to point to the primary DNS server. c. An Active Directory-integrated stub zone. d. A standard secondary zone.

d. A standard secondary zone.

Which is a DNS server to which other DNS servers send requests targeted for a specific domain? a. Authoritative server b. Domain forwarder c. Caching-only server d. Conditional forwarder

d. Conditional forwarder

You have several hundred client computers using WINS to resolve names of some enterprise servers. Many of the client computers are laptops used to connect to the network remotely. You're trying to eliminate WINS from your network to reduce the number of protocols and services you must support. With the least administrative effort, what can you do that allows you to stop using WINS yet still allows clients computers to use a single-label name for accessing enterprise servers? a. Configure each client computer with the correct domain suffix. b. Create a Hosts file containing servers' names and addresses and upload this file to each client that needs it. c. Create a stub zone and add CNAME records for each enterprise server. d. Create a GlobalNames zone and add CNAME records for enterprise servers.

d. Create a GlobalNames zone and add CNAME records for enterprise servers.

When a DNS server responds to a query with a list of name servers, what is the response called? a. Resolver b. Recursive c. Iterative d. Referral

d. Referral

You have decided that you need to change the setting of an existing DNS forwarder. Which of the following PowerShell cmdlets will allow you to accomplish this task? a. Import-DnsServerForwarder b. Set-DnsServerRecursion c. Add-DnsServerForwarder d. Set-DnsServerForwarder

d. Set-DnsServerForwarder

Which record, found in every zone, contains information that identifies the server primarily responsible for the zone? a. Host record b. Canonical Name record c. Service location record d. Start of authority record

d. Start of authority record

The responsible person section of an SOA record contains what information? a. The name or organization responsible for the zone b. The username responsible for the zone c. The SWIP account details for the zone d. The email address of the responsible person

d. The email address of the responsible person

Which of the following accurately represents an FQDN? a. domain.host.top-level-domain b. host.top-level-domain.subdomain.domain c. host.domain.top-level-domain.subdomain d. host.subdomain.domain.top-level-domain

d. host.subdomain.domain.top-level-domain